/*
 * Copyright 2017 ~ 2025 the original author or authors. James Wong <jameswong1376@gmail.com>>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.wl4g.infra.context.utils;

import org.springframework.aop.framework.Advised;
import org.springframework.aop.support.AopUtils;

/**
 * Increasing the support of target objects for obtaining JDK dynamic proxy
 * /CGLIB proxy object agents
 * 
 * @author James Wong <jameswong1376@gmail.com>
 * @version v1.0
 * @time 2016年11月9日
 * @since
 */
public abstract class AopUtils2 extends AopUtils {

    /**
     * Get target object
     * 
     * @param candidate
     *            Proxy object
     * @return
     * @throws Exception
     */
    @SuppressWarnings("unchecked")
    public static <T> T getTarget(Object candidate) {
        try {
            if (candidate == null) {
                return null;
            }
            if (isAopProxy(candidate) && (candidate instanceof Advised)) {
                return (T) ((Advised) candidate).getTargetSource().getTarget();
            }
        } catch (Exception e) {
            throw new IllegalStateException("Failed to unwarp proxied object.", e);
        }
        return (T) candidate;
    }

}